650122000 has 160 divisors (see below), whose sum is σ = 1775779200. Its totient is φ = 228032000.

The previous prime is 650121991. The next prime is 650122019. The reversal of 650122000 is 221056.

It is a happy number.

It is a super-2 number, since 2×650122000² = 845317229768000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637491 + ... + 638509.

It is an arithmetic number, because the mean of its divisors is an integer number (11098620).

Almost surely, 2^650122000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887889600).

650122000 is an abundant number, since it is smaller than the sum of its proper divisors (1125657200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650122000 is a wasteful number, since it uses less digits than its factorization.

650122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 650122000 is about 25497.4900725542. The cubic root of 650122000 is about 866.2932974228.

Adding to 650122000 its reverse (221056), we get a palindrome (650343056).

The spelling of 650122000 in words is "six hundred fifty million, one hundred twenty-two thousand".